The non-cutting separating method, especially for separating metal pipes or closed and open profiles, entails applying the action of a forming punch (9) or die, orthogonally to the longitudinal axis of the profile, along a notch point which has been introduced beforehand in the preferably still flat,...http://www.google.kz/patents/DE102007018927A1?cl=en&utm_source=gb-gplus-sharePatent DE102007018927A1 - Non-cutting separating method, especially for separating metal pipes or closed and open profiles, entails applying action of forming punch or die along notch point introduced beforehand in preferably still flat, undeformed strip material

The non-cutting separating method, especially for separating metal pipes or closed and open profiles, entails applying the action of a forming punch (9) or die, orthogonally to the longitudinal axis of the profile, along a notch point which has been introduced beforehand in the preferably still flat, undeformed strip material, thereby creating a break. The notch point can be introduced on one side or on both sides of the preferably flat strip material.

Im Automobil-, Möbel-, Sanitärbereich sowie in der Heizungs- und Kälteindustrie werden Rohr- und Profilabschnitte in unterschiedlichen Längen benötigt. In the automotive, furniture, vanity area, and in the heating and cooling industry pipe and profile sections are required in different lengths.Die Trennstellen der Rohr- und Profilabschnitte sollen möglichst deformationsarm und gratfrei ausgeführt sein. The joints of the pipe and profile sections are to be performed with little deformation as possible and free of burrs.

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Hierbei kommen unterschiedliche Werkstoffe zum Einsatz, welche vorzugsweise durch ein Walzprofilierverfahren in die jeweilige Endgeometrie über mehrere Verformungsschritte umgeformt werden. Here, different materials are used, which are preferably formed by a roll forming process in the respective final geometry formed in several stages to come.

Hierbei sind die Rohre oder Profile durch das Walzprofilierverfahren bereits in ihrer Endgeometrie fertig hergestellt. Here, the tubes or profiles have already been made ready in their final geometry of the roll forming process.